i think a good decent priced gaming laptop is the toshiba M35-S456. it has all the needs for a gaming laptop
15.4 TFT active matrix( its one of those bright screens and they kick *** especially for gaming)
Intel Pentium M 735 1.7ghz
80gb harddrive 4200rpm
64mb Nvidia GeForce FX Go5200
the screen is one of the best things i liked most about this computer. Once you start using this screen its irritating to go back to a normal screen. Alienware does not provice these kind of screens so i dont really like their laptops.
If you dont mind spending some cash for a good gaming laptop
id suggest prostar 9095,4764 or 4754 priced most expensive to least. be warned they start at around $1775 to $3895 and they are customizable if u dont like the specs.